Inicio " Doblado de metales

Servicios de plegado de metal

Expert sheet metal bending solutions for high-quality prototypes and production components. From simple bends to complex formed parts, Tuowei delivers precise metal bending services with rapid DFM review and exceptional turnaround times.

Two bent sheet metal angle brackets with drilled mounting holes, galvanized steel finish
Sheet metal strip bent into a wavy profile between a press brake punch and V-die blocks

¿Qué es el plegado de metales?

Metal bending is a core metal fabrication process that reshapes flat sheet metal into precise angles and curves by applying mechanical force, without cutting material away or changing its thickness. It is the forming step that turns a flat, laser cut blank into a functional three-dimensional part. At Tuowei Precision, our metal bending service covers everything from simple 90-degree flanges to complex multi-bend components, using advanced electric and hydraulic press brakes that deliver superior accuracy and consistent results, even on parts with tight tolerances. We bend metal in aluminum, stainless steel, carbon steel, copper, and galvanized steel, and every project includes comprehensive post-processing, so your bent parts arrive formed, finished, and ready for immediate use. Bending is one stage of our complete fabricación de chapa metálica service — most parts start as blanks from our laser cutting services (or plasma cutting for very thick plate) before they reach the press brake.

Close-up of a press brake punch pressing a metal sheet into a V-die to form a bend

¿Cómo funciona el plegado de metales?

A press brake machine forms sheet metal between a punch and a die. The flat sheet is positioned against a CNC (computer numerical control) backgauge, the punch descends, and the metal is pressed into the die opening until it takes the target bend angle. Because the deformation is controlled and repeatable, a CNC press brake holds the same angle across a single prototype or a full production run. Tuowei’s press brakes are hydraulic press and electric models, programmed directly from your CAD (computer-aided design) file for fast setup and minimal variation.

Bending Methods We Use

  • Air bending: The punch presses the sheet into a V-die without bottoming out, so one tool set produces many bend angles. It is the most flexible and common method in modern sheet metal bending.
  • Bottoming: The sheet is pressed firmly into the die to set a precise angle with less springback — ideal when a specification calls for exact, repeatable angles.
  • Coining: High tonnage stamps the bend radius into the material, virtually eliminating springback for the tightest angle control.
  • Roll bending and plate rolling: Curved metal profiles, cylinders, and cone shapes are formed progressively between rollers rather than on the press brake.

Unlike tube bending, which forms hollow sections around a mandrel, or pipe bending for fluid lines, sheet metal bending folds flat parts — but the engineering principles are shared. Three factors decide whether a bent part meets its specification: the bend radius (typically at least equal to the material thickness to avoid cracking), the bend allowance and K-factor (which calculate the flat pattern length so the finished component lands on dimension), and springback (the metal’s tendency to relax after forming, which our operators compensate for by overbending slightly). Controlling these factors is how we prevent distortion and deformation, and how flat parts become accurate finished components. The best metal bending results start with a correct flat pattern: send us your CAD file or DXF and our engineers will check every bend before production.

Operator bending a stainless steel sheet on a CNC press brake

Capacidad de plegado de metales

Tuowei provides precision bending capabilities that combine advanced machinery, strict quality standards, and final inspection to handle a wide range of metal types, part sizes, and production volumes — for quality metal bending results from prototypes to large-scale production runs.

Características Descripción
Tamaño máximo de la pieza 1,5 m × 1,5 m
Fuerzas de flexión del metal Hasta 1000 toneladas
Longitud de la línea de plegado Hasta 7200 mm
Espesor de curvatura Hasta 60 mm
Tolerancias generales Basado en ISO 2768. Curvatura hasta el borde/agujero, superficie única: ±0,254 mm (±0,010 pulg.)
Radio de curvatura Igual al espesor del material
Ángulo de curvatura ±1°
Área de corte en curva Hasta 4000 mm
Plazos de entrega 5 días o más

Working outside this specification range? Talk to our team. As a full-service fabricator, our metal fabrication services cover the processes around bending too, and parts that need machined features move straight into our 5-axis CNC machining shop — we will tell you honestly if a part is better made another way.

Acabados superficiales para el plegado de metales

Surface finishes for bent metal parts enhance strength, durability, and appearance, making them suitable for both functional and aesthetic applications. Finishing is usually applied after forming, so the coating stays intact through the bend. Popular options from our surface finishing services incluyen:

As-Formed (Standard)
Metal bearing housing with a central bore, covered in visible circular tool marks in its as-machined finish

The natural finish straight off the press brake, ideal for functional applications where a decorative finish is not critical.

Granallado
Machined metal plate with a uniform matte bead-blasted finish, showing countersunk holes and a forked cutout

Propels media such as glass beads at the surface to create a smooth, uniform matte finish.

Recubrimiento en polvo
Close-up of a metal part with a textured deep blue powder-coated finish and a raised circular boss with a hole

A durable coating offering excellent resistance to wear, corrosion, and UV exposure, available in a wide range of colors.

Cepillado
Close-up of a metal bearing housing flange with fine directional brush lines, showing a brushed finish

Applies a linear, uniform grain texture, creating a satin-like finish.

Pulido
Macro close-up of a mirror-polished metal corner with a smooth reflective polished finish

Consigue una superficie brillante, como un espejo, que mejora la calidad visual de la pieza.

Óxido negro
Black CNC-machined metal bracket with triangular pockets and drilled holes, showing a matte black oxide finish

Ideal for steel components, this dark, matte finish provides mild corrosion resistance while maintaining a quality appearance.

Ventajas

Ventajas de la fabricación por plegado

Metal bending offers significant benefits, making it a critical metal forming process across many industries:

Aplicaciones

Aplicaciones de las piezas metálicas dobladas

Bent metal components are versatile, transforming flat metal sheets into functional, durable parts for a wide range of uses:

Preguntas frecuentes

Metal Bending FAQ

Preguntas frecuentes

Metal Bending FAQ

  • How much does a metal bending service cost?

    Cost depends on material and thickness, bend count and complexity, tolerances, finishing, and quantity.

    Bending needs no dedicated tooling beyond standard punch and die sets, making it highly economical.

    Per-part cost falls quickly with volume, and a free quote with DFM review arrives within 1 day.

  • What tolerances can sheet metal bending hold?

    Standard bending tolerances follow ISO 2768, with bend angles holding ±1 degree.

    Bend-to-edge or bend-to-hole dimensions hold ±0.254 mm (±0.010 in.) on a single surface.

    Tighter tolerances are available on many geometries and are confirmed before production.

  • What types of metal can be bent?

    We bend aluminum, stainless steel, carbon steel, copper, and galvanized steel sheet and plate.

    Material hardness and ductility decide the minimum bend radius for each metal.

    Capabilities cover thicknesses up to 60 mm and bending forces up to 1,000 tons.

  • What design files do you need for a bending quote?

    Send a 3D CAD file (STEP is preferred) or a DXF flat pattern with bend lines, material, thickness, and finish.

    If your design lacks bend allowance and K-factor, our engineers develop the flat pattern during free DFM review.

    Complete files produce faster, more accurate bending quotes.

  • How fast can bent parts be delivered?

    Standard lead times for bent parts start at 5 days, and many prototypes ship in 3–5 days.

    Timeline depends on complexity and finishing requirements.

    In-house cutting, bending, and finishing avoids delays from moving between separate suppliers.

Construyamos juntos el futuro

Asóciese con TUOWEI para dar forma a su visión

Desde la era de la creación rápida de prototipos hasta la producción escalable, Tuowei Precision le ayuda con su proyecto gracias a sus fiables servicios de mecanizado CNC y fabricación. Nuestro equipo colabora con usted para asegurarse de que haya precisión, consistencia y una ejecución sin problemas en todos los niveles.

Comience su proyecto ahora y dé el primer paso hacia una fabricación eficiente y de alta calidad con Tuowei.

Póngase en contacto con nosotros
Respuesta rápida garantizada en 12 horas
🔐 Todas las cargas son seguras y confidenciales

Soluciones de Tuowei Proto

Tanto si está creando un pequeño lote de piezas personalizadas como si está escalando para una producción de gran volumen, los servicios Tuowei Proto le ofrecen la flexibilidad que necesita.

CNC machining spindle with a ball nose end mill finishing a contoured wave-profiled metal part
Creación rápida de prototipos

El mecanizado rápido de prototipos CNC es perfecto para crear prototipos de ingeniería o producción que se asemejan mucho al producto final tanto en apariencia como en funcionalidad. En Tuowei, ofrecemos presupuestos instantáneos y entregas rápidas, proporcionándole prototipos mecanizados CNC precisos y de alta calidad para sus necesidades.

CNC milling spindle machining a wave-profiled metal workpiece in a fixture, coolant line alongside and chips on the table
Fabricación de bajo volumen

El mecanizado CNC de bajo volumen a menudo actúa como puente entre la creación de prototipos y la producción en serie para la producción nueva y emergente. Con Tuowei, este proceso se vuelve más fácil, eficiente y rentable, lo que le permite escalar la producción rápidamente manteniendo los estándares de alta calidad.

CNC milling spindle machining an aluminum housing on the machine table
Uso final Producción

El mecanizado de producción CNC es la mejor solución para producir mil piezas o más de forma eficiente. Aprovechando una variada selección de materiales y capacidades de automatización y multieje, Tuowei ofrece una producción de gran volumen con tolerancias ajustadas, precisión dimensional superior, alta fiabilidad y plazos de entrega rápidos.

Explore Insights & Innovation

Manténgase al día sobre el mecanizado CNC real, las tendencias del sector y las perspectivas de producción en Tuowei Precision, pero se instala para permitirle tomar mejores decisiones de producción.